its been confirmed by several people they do indeed hold it open. it only shows 85 degrees but thats the physical limit, or something
Aaron, i have been doing a lot of logging recently and observed that the absolute tp can hit 88 deg at times but it appears to mostly settle at 85 - 86 deg. Not sure if this is such a big deal or not. interestingly i noted the throttle drop to 70 % during spoolup - i guess in order to slow down spool and reduce spiking. Sill spikes 2 psi though. If have logs if you are interested.
Harry